16Bram Stoker

17Bob Ross

Google's Oct. 29, 2012 homepage doodle celebrated the 70th birthday of painter and TV star Bob Ross, who starred in the PBS show The Joy of Painting for more than a decade, and is known to millions as the soft spoken, always upbeat artist who encouraged us all to create "happy little trees."

20Niels Bohr

21Star Trek

In Sept. 2012,Google celebrated the 46th birthday of the original TV series. Google dressed up the letters in its logo as Star Trek cast members, and with the click of a mouse, searchers could beam Kirk to an adventure beyond the confines of the starship USS Enterprise.

59Freddie Mercury

60Jorge Luis Borges

This Aug. 24, 2011 doodle celebrated the 112th birthday of Argentine poet, essayist, and short story writer Jorge Luis Borges with a homepage doodle that captured the author's surreal approach to literary works.

68Lunar Eclipse

69Les Paul

This June doodle, in honor of what would have been musician Les Paul's 96th birthday, proved so popular that Google ran it for two days in the United States. Those strings were playable, however, and in the U.S., users could record a 30-second snippet. Here at PCMag, we recorded The Beatles' "Here Comes the Sun."

70Richard Scarry

71Martha Graham

This May 11 doodle celebrated what would have been the 117th birthday of dancer and choreographer Martha Graham. The animated doodle featured dancers peforming some of Graham's most famous dances; more more, see the full slideshow.